Gas-engine



(No Model.)

J. W. LAMBERT. GAS ENGINE.

No. 550,832. Patented Dec. 3, 1895.

NDREW a GRMAM Pncm-L muwAsnmGmN i} UN TED STATES PATENT OFFICE.

JOHN W. LAMBERT, OF ANDERSON, INDIAN-A.

GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 550,832, dated December3, 1895. Application filed August 24, 1895. Serial No. 560,414. (Nomodel.)

To 00% whom it may concern.-

Be it known that 1, JOHN XV. LAMBERT, a citizen of the United States,residing at Anderson, in the county of Madison and State of Indiana,have invented certain new and useful Improvements in Gas-Engines, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

This invention relates to improvements upon that class of gas-engines inwhich each charge of gas is ignited by an electric spark and in whichthe cylinder is cooled by means of a water-jacket surrounding the same;and the objects of the invention are, first, to more effectively coolthe end of the cylinder in which the explosion takes place; secondly, toenable the lime deposited by the water to be more readily removed fromthe interior of the water-space and without disturbing the cylinder heador plate carrying the sparker, and, thirdly, to avoid the necessity ofpacking the main head or ring against the explosion pressure, as morefully hereinafter set forth.

Referring to the drawings, Figure 1 is an end elevation of a portion ofa gas-engine provided with my improvements Fig. 2, an end elevation ofthe cylinder with the main head removed, and Fig. 3 avertical section ofthe end of the cylinder provided with my improvements.

Referring to the drawings by numerals, 1 designates the cylinder properin whichthe piston works and which is contracted at its extreme rear endto form the explosion-chamber. Cast integral with the cylinder is thewater-jacket 2, whose rear end terminates about where the cylinderbegins to contract. Bolted over the open end of the cylinder by bolts 3is the plate 3, carrying the sparking devices, this plate being packedagainst the explosion-pressure. is fitted over and encircles theprojecting end of the cylinder and is substantially flush with the endsurface of the same. This hollow head is bolt-ed by bolts 4: to anannular exterior flange 5, formed on the cylinder near its end, and alsoby bolts 4 against the adjacent end of the water-jacket, these twojoints being packed against the water-pressure only. This hollow headpractically is an extension A hollow head or ring 4' of thewater-jacket, as it completes and eX- tends the water-chamber around theprojecting end of the cylinder.

It will be observed that by this construction it is not necessary topack the head 4 against the explosion-pressure, it needing only to bepacked against the water-pressure. The advantage of this feature will beappreciated when it is understood that the water-pressure is never morethan one pound to the inch, while the expl0sion-pressure is frequentlyas high as two hundred and fifty pounds to the inch.

It will also be seen that by removing the hollow head access may bereadily had to the interior walls of the water-chamber, and especiallythe projecting end of the cylinder, for the purpose of removing the limeaccumulations.

Another advantage is that a large body of water will be maintainedentirely around the explosion-chamber, where, on account of the intenseheat, it is most needed.

As is obvious, changes in construction may be made without departingfrom the spirit of the invention. For instance, the rear end of thecylinder may be closed by a solid plate cast with the cylinder or by aplug screwed or otherwise fastened therein, and, further, that thesparker may be located at some other place, if desired.

Having thus fully described my invention, what I claim is- 1. In a gasengine, the combination of the cylinder provided with a water jacket, asparker-carrying plate bolted over the end of the cylinder, and a headencircling the end of the cylinder and bolted and packed against thecylinder and the adjacent end of the water jacket, substantially asdescribed.

2. The combination, in a gas engine, of a cylinder carrying a waterjacket, said jacket terminating short of the rear end of the cylinder,the projecting end of the cylinder being flanged annularly, a platebolted overthe projecting end of the cylinder and carrying the igniter,and a hollow head encircling the projecting end of the cylinder andboltedto said annular flange and against the end of the water jacket, asand for the purposes set forth.

3. In a gas engine, the combination of a cylinder having formed integralwith it a water head encircling the rear end of the cylinder and packedagainst the same and the Water jacket and being removable independently15 of said rear end of the cylinder and the jacket, substantially asdescribed.

In testimony whereof I afiix my signature in presence of tWo Witnesses.

JOHN W. LAMBERT.

Witnesses:

F. L. MARSHALL, H. E. LONGENECKER.

